EP1369939A2 - Galvanisches Element - Google Patents
Galvanisches Element Download PDFInfo
- Publication number
- EP1369939A2 EP1369939A2 EP03010653A EP03010653A EP1369939A2 EP 1369939 A2 EP1369939 A2 EP 1369939A2 EP 03010653 A EP03010653 A EP 03010653A EP 03010653 A EP03010653 A EP 03010653A EP 1369939 A2 EP1369939 A2 EP 1369939A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- galvanic element
- connections
- housing
- collector
- plastic layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000011888 foil Substances 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 12
- 239000002985 plastic film Substances 0.000 claims description 8
- 229920006255 plastic film Polymers 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009830 intercalation Methods 0.000 claims description 2
- 239000013464 silicone adhesive Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- -1 polyethylene Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- IEPQGNKWXNDSOS-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene dihydrofluoride Chemical group FC(C(F)=C(F)F)(F)F.F.F IEPQGNKWXNDSOS-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000005677 organic carbonates Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to a galvanic element according to the preamble of claim 1, which in particular in a housing from the inside composite film coated with insulating material a stack of several Single cells with positive and negative electrodes and separators contains.
- Rechargeable galvanic elements especially lithium cells
- the individual cells that make up such a cell stack is composed of a laminate that is made up of arresters, active Electrode film and separator is generated.
- Such laminates from firmly connected Individual parts are in particular called so-called bicells with the possible sequences negative electrode / separator / positive electrode / separator / negative electrode or positive electrode / separator / negative Electrode / separator / positive electrode made.
- bizelles are piled up into a stack, which after insertion into one Containers made of, for example, thermoformed aluminum composite foil, filling with electrolyte, sealing with a lid, formation and end closure too a finished battery is processed.
- the electrodes of each polarity are included Provide drain tabs that are welded to a collector that is led through the housing to the outside.
- the surge arresters are used to maintain the high energy density of the galvanic element folded tightly. It has been shown to be common in such cells Short circuits due to contact between conductor tabs and the metal of the outer Aluminum composite foil occur.
- the invention has for its object the short-circuit protection of such increase galvanic elements.
- the arrester connections are each polarity welded to a collector that the outer electrical connection of the cell forms.
- the inside of the case areas of the arrester tabs adjacent to the housing wall and the collector are covered with a plastic layer or a plastic film covered.
- a plastic film can be used with the arrester and the collector be glued to a silicone layer.
- At least one of the electrodes is preferred a lithium intercalating electrode.
- the plastic layer can be made of polyethylene, polypropylene, polyimide, polyethylene terephthalate, PVC or PDFE exist.
- the thickness of the plastic layer can be 10 ⁇ m to 100 ⁇ m, advantageously 20 ⁇ m to 60 ⁇ m or approx. 40 ⁇ m.
- the battery 1 contains, for example, seven to eight individual cells in one Housing made of composite film 1, for example aluminum composite film.
- the Composite film 1 is at least on the inside of the cell Provide the surface with a plastic coating as insulation.
- the individual cells consist of positive electrodes 2, negative electrodes 3 and separators 4.
- the electrodes 2 and 3 each have lead tabs 8, wherein the positive discharge tabs 8 are shown in the figure. These are with a collector 5 made of the same material as the discharge tabs 8. For positive electrodes, this is aluminum, for negative electrodes Copper.
- a high space utilization and a correspondingly high energy density to obtain the arrester tabs, as shown in Figure 2, are folded closely together.
- the conductor tabs 8 consist of expanded metal, for example aluminum expanded metal.
- Individual bars or wires of expanded metal can when punching out the electrode. While sealing the cell high pressures and temperatures occur. These webs or wires can the inner sealing layer of the composite film during the sealing of the cell 1, which consist of polypropylene or ethylene-acrylic acid copolymer can pierce. You can touch the metal of the composite film and cause a short circuit.
- kinks in the electrode arrester 8 and the area in which the arrester 8 and collector 5 are welded during the sealing process can be in the sealing area Pierce the sealing film 7 arranged.
- the sealing film 7 can for example made of polypropylene. This allows connections from a pole to the housing or bilateral connections of the poles to the Housing arise, which in the latter case in particular leads to an internal short circuit to lead.
- the one lying inside the galvanic element Area of those arresters 8 which are adjacent to the housing wall 1 are and the area of welding to the collector 5 by one high melting plastic film 6 covered.
- the plastic film 6 is with glued to the arrester or collector area.
- a suitable plastic film can be made of polyethylene, polypropylene, polyimide, polyethylene terephthalate, PVC or PDFE exist. Polyimide is preferred as the plastic material used.
- the plastic film 6, which has a thickness of 20 to 60, for example ⁇ m can be coated with a silicone material.
- the silicone material forms an adhesive layer with high adhesive strength and is, just like the material of the plastic film, chemically compatible and inert to the Components of the cell, especially against organic carbonates and lithium conductive salts like LiPF6 or LiBF4.
- the arrester and collector areas within the cell become small Material use that has little influence on the weight and volume of the cell, a high level of security against short-circuits and sheathed connections during manufacture achieved by lithium / polymer batteries.
- the specific energy densities the cell remains practically unchanged.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (7)
- Galvanisches Element mit einem Gehäuse, wobei:das Gehäuse eine Gehäusewand (1) aufweistdie Gehäusewand (1) eine Metallfolie aufweist,die Metallfolie auf der Innenseite mit Isoliermaterial beschichtet ist,das galvanische Element einen Stapel aus mehreren Einzelzellen mit positiven und negativen Elektroden (2, 3) sowie Separatoren (4) in dem Gehäuse enthält,die Elektroden Ableiter-Anschlüsse (8) aufweisen,das galvanische Element Kollektor-Anschlüsse (5) als elektrischen Anschluss nach außen aufweist,jeweils Ableiter-Anschlüsse (8) gleicher Polarität mit einem der Kollektor-Anschlüsse (5) verbunden sind,sowohl die Ableiter-Anschlüsse (8), welche benachbart sind zu der Gehäusewand (1), als auch der damit verbundene Kollektor-Anschluss (5) Bereiche aufweisen, die zu einer Innenseite (1) der Gehäusewand weisen und mit einer Kunststoffschicht (6) abgedeckt sind.
- Galvanisches Element nach Anspruch 1, dadurch gekennzeichnet, dass die Kunststoffschicht (6) ein Kunststofffilm ist.
- Galvanisches Element nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens eine der Elektroden (2, 3) eine Lithium-interkalierende Elektrode ist.
- Galvanisches Element nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kunststoffschicht (6) mit dem Ableiter-Anschluss (8) und dem Kollektor-Anschluss (5) verklebt ist.
- Galvanisches Element nach Anspruch 4, dadurch gekennzeichnet, dass die Kunststoffschicht (6) mit dem Ableiter-Anschlss (8) und dem Kollektor-Anschluss (5) mittels einer Silikonklebeschicht verklebt ist.
- Galvanisches Element nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kunststoffschicht (6) aus Polyimid besteht.
- Galvanisches Element nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kunststoffschicht (6) eine Dicke von 20 µm bis 60 µm aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10225041.3A DE10225041B4 (de) | 2002-06-06 | 2002-06-06 | Galvanisches Element |
DE10225041 | 2002-06-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1369939A2 true EP1369939A2 (de) | 2003-12-10 |
EP1369939A3 EP1369939A3 (de) | 2004-06-09 |
Family
ID=29432662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03010653A Withdrawn EP1369939A3 (de) | 2002-06-06 | 2003-05-13 | Galvanisches Element |
Country Status (6)
Country | Link |
---|---|
US (1) | US7122275B2 (de) |
EP (1) | EP1369939A3 (de) |
JP (1) | JP4555549B2 (de) |
KR (1) | KR100985365B1 (de) |
CN (1) | CN1286193C (de) |
DE (2) | DE20221990U1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1734596A1 (de) * | 2004-03-09 | 2006-12-20 | NEC Lamilion Energy, Ltd. | Filmeingeschlossene elektrische einrichtung und collectorabdeckglied für die filmeingeschlossene elektrische einrichtung |
EP1946396A1 (de) * | 2005-11-08 | 2008-07-23 | LG Chem, Ltd. | Sekundärbatterie mit verbesserter sicherheit |
WO2009115324A1 (de) * | 2008-03-20 | 2009-09-24 | Varta Microbattery Gmbh | Galvanisches element mit foliendichtung |
EP2363907A1 (de) * | 2010-02-19 | 2011-09-07 | Samsung SDI Co., Ltd | Elektrodenanordnung und Sekundärbatterie damit |
EP2485298A1 (de) * | 2011-02-04 | 2012-08-08 | Sanyo Electric Co., Ltd. | Stapelbare Batterie und Herstellungsverfahren dafür |
DE102011109237A1 (de) | 2011-08-02 | 2013-02-07 | Daimler Ag | Batteriezelle |
EP3043404A1 (de) * | 2015-01-07 | 2016-07-13 | Samsung SDI Co., Ltd. | Sekundärbatterie |
DE102017215147A1 (de) * | 2017-08-30 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Elektrochemische energiespeichervorrichtung und verfahren zur herstellung dieser |
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JP4568123B2 (ja) * | 2005-01-12 | 2010-10-27 | 三洋電機株式会社 | 非水電解質電池 |
KR100624957B1 (ko) * | 2005-04-26 | 2006-09-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
JP4599314B2 (ja) | 2006-02-22 | 2010-12-15 | 株式会社東芝 | 非水電解質電池、電池パック及び自動車 |
EP2006935B1 (de) * | 2006-03-13 | 2012-09-26 | NEC Corporation | Elektrische anordnung mit einer äusseren filmabdeckung |
WO2008016243A1 (en) * | 2006-07-31 | 2008-02-07 | Lg Chem, Ltd. | Secondary battery with top sealed portion of improved structure |
DE102006053273A1 (de) * | 2006-11-06 | 2008-05-08 | Varta Microbattery Gmbh | Galvanisches Element mit Kurzschluss-Schutz |
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US8734986B2 (en) * | 2007-07-11 | 2014-05-27 | Nissan Motor Co., Ltd. | Laminate type battery |
US8247030B2 (en) | 2008-03-07 | 2012-08-21 | Tokyo Electron Limited | Void-free copper filling of recessed features using a smooth non-agglomerated copper seed layer |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1734596A4 (de) * | 2004-03-09 | 2010-10-20 | Nec Corp | Filmeingeschlossene elektrische einrichtung und collectorabdeckglied für die filmeingeschlossene elektrische einrichtung |
EP1734596A1 (de) * | 2004-03-09 | 2006-12-20 | NEC Lamilion Energy, Ltd. | Filmeingeschlossene elektrische einrichtung und collectorabdeckglied für die filmeingeschlossene elektrische einrichtung |
US9705112B2 (en) | 2005-11-08 | 2017-07-11 | Lg Chem, Ltd. | Secondary battery with advanced safety |
EP1946396A1 (de) * | 2005-11-08 | 2008-07-23 | LG Chem, Ltd. | Sekundärbatterie mit verbesserter sicherheit |
EP1946396A4 (de) * | 2005-11-08 | 2011-03-30 | Lg Chemical Ltd | Sekundärbatterie mit verbesserter sicherheit |
EP2426758B1 (de) * | 2005-11-08 | 2021-07-21 | LG Chem, Ltd. | Sekundärbatterie |
US8795883B2 (en) | 2005-11-08 | 2014-08-05 | Lg Chem, Ltd. | Secondary battery with advanced safety |
WO2009115324A1 (de) * | 2008-03-20 | 2009-09-24 | Varta Microbattery Gmbh | Galvanisches element mit foliendichtung |
EP2363907A1 (de) * | 2010-02-19 | 2011-09-07 | Samsung SDI Co., Ltd | Elektrodenanordnung und Sekundärbatterie damit |
US9806321B2 (en) | 2010-02-19 | 2017-10-31 | Samsung Sdi Co., Ltd. | Electrode assembly having compact electrode tabs and secondary battery using the same |
EP2485298A1 (de) * | 2011-02-04 | 2012-08-08 | Sanyo Electric Co., Ltd. | Stapelbare Batterie und Herstellungsverfahren dafür |
DE102011109237A1 (de) | 2011-08-02 | 2013-02-07 | Daimler Ag | Batteriezelle |
US9590225B2 (en) | 2015-01-07 | 2017-03-07 | Samsung Sdi Co., Ltd. | Secondary battery |
EP3043404A1 (de) * | 2015-01-07 | 2016-07-13 | Samsung SDI Co., Ltd. | Sekundärbatterie |
DE102017215147A1 (de) * | 2017-08-30 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Elektrochemische energiespeichervorrichtung und verfahren zur herstellung dieser |
Also Published As
Publication number | Publication date |
---|---|
US7122275B2 (en) | 2006-10-17 |
US20030228515A1 (en) | 2003-12-11 |
DE10225041B4 (de) | 2014-05-08 |
CN1469498A (zh) | 2004-01-21 |
DE10225041A1 (de) | 2003-12-18 |
DE20221990U1 (de) | 2010-06-10 |
JP4555549B2 (ja) | 2010-10-06 |
EP1369939A3 (de) | 2004-06-09 |
JP2004014516A (ja) | 2004-01-15 |
KR20030095266A (ko) | 2003-12-18 |
CN1286193C (zh) | 2006-11-22 |
KR100985365B1 (ko) | 2010-10-04 |
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